The patch titled
mtd-nand-davinci-add-4-bit-ecc-support-for-large-page-nand-chips-update
has been added to the -mm tree. Its filename is
mtd-nand-davinci-add-4-bit-ecc-support-for-large-page-nand-chips-update.patch
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Subject: mtd-nand-davinci-add-4-bit-ecc-support-for-large-page-nand-chips-update
From: Sneha Narnakaje <nsnehaprabha@xxxxxx>
This patch adds 4-bit ECC support for large page NAND chips using the new
ECC mode NAND_ECC_HW_OOB_FIRST. The platform data from board-dm355-evm
has been adjusted to use this mode.
The patches have been verified on DM355 device with 2K Micron devices
using mtd-tests and JFFS2. Error correction upto 4-bits has also been
verified using nandwrite/nanddump utilities.
This patch series applies to linux-mtd next (mmotm) GIT tree.
This version (v4) addresses the review comment to leave 2 bytes at offset
0 for NAND manufacturer badblock markers.
Cc: David Brownell <dbrownell@xxxxxxxxxxxxxxxxxxxxx>
Signed-off-by: Sneha Narnakaje <nsnehaprabha@xxxxxx>
Signed-off-by: Sandeep Paulraj <s-paulraj@xxxxxx>
Cc: David Woodhouse <dwmw2@xxxxxxxxxxxxx>
Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Cc: Troy Kisky <troy.kisky@xxxxxxxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
drivers/mtd/nand/davinci_nand.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff -puN drivers/mtd/nand/davinci_nand.c~mtd-nand-davinci-add-4-bit-ecc-support-for-large-page-nand-chips-update drivers/mtd/nand/davinci_nand.c
--- a/drivers/mtd/nand/davinci_nand.c~mtd-nand-davinci-add-4-bit-ecc-support-for-large-page-nand-chips-update
+++ a/drivers/mtd/nand/davinci_nand.c
@@ -522,8 +522,8 @@ static struct nand_ecclayout hwecc4_2048
54, 55, 56, 57, 58, 59, 60, 61, 62, 63,
},
.oobfree = {
- /* 1 byte at offset 0 holds manufacturer badblock marker */
- {.offset = 1, .length = 23, },
+ /* 2 bytes at offset 0 hold manufacturer badblock markers */
+ {.offset = 2, .length = 22, },
/* 5 bytes at offset 8 hold BBT markers */
/* 8 bytes at offset 16 hold JFFS2 clean markers */
},
_
Patches currently in -mm which might be from nsnehaprabha@xxxxxx are
mtd-nand-add-page-parameter-to-all-read_page-read_page_raw-apis.patch
mtd-nand-add-new-ecc-mode-ecc_hw_oob_first.patch
mtd-nand-davinci-add-4-bit-ecc-support-for-large-page-nand-chips.patch
mtd-nand-davinci-add-4-bit-ecc-support-for-large-page-nand-chips-update.patch
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